Mounting, installation and connection
20
BA.10A.CNY.001.01.10.GB
4.3 Aligning the coupling
Why is alignment important?
Careful alignment significantly increases the service life of the
coupling as well as the shaft bearing and sealings.
Fig. 5 shows the possible types of deviation in coupling align-
ment.
W A R N I N G
!
When aligning the coupling, pay close attention to safety in-
structions in section 2.2.
To align the coupling, proceed as follows:
1. Disassemble the coupling protection.
2. Place the hairline ruler on four points facing each other
(in 90° increments) over the two halves of the coupling.
3. The hairline ruler must have the same distance (open
gap) everywhere.
4. For a radial or angular shift: Place the calibrated underlay
plates under the motor or pump casing
1
.
5. Remount the coupling protection.
1.
For vertical pump set-up (CNV), place the underlay plates between the pump casing and vertical frame.
Fig. 5
Types of shift (principal figure)
• A - axial shift
• B - angular shift
• C - radial shift
K.0
159V
1
